Jalousie element

ABSTRACT

A closure for a wall opening, such as a window, in which the closure is in the form of a rolling shield adapted to be wound up on a shaft. The shaft is rotatably mounted in a box and the box supports guides for the said edges of the shield so that the entire closure arrangement forms a unit adapted for being mounted on the wall containing the opening to be closed thereby in a simple manner.

United States Patent [191 Herms 1 Oct. 8, 1974 I 1 .IALOUSIE ELEMENT[76] Inventor: Gunter Herms, Kapellenstr. 52, 52

Siegburg-Kaldauen, Germany 221 Filed: ,1an.28, 1971 21 App1.No.: 110,698

[30] Foreign Application Priority Data Jan. 25, 1971 Canada 103506 [52]US. Cl 160/26, 160/29, 160/133 [51] Int. Cl E061) 9/08 [58] Field ofSearch 160/19, 26, 27, 29, 30, 160/33, 38,133

[56] References Cited UNITED STATES PATENTS 1,471,534 10/1923 Smythe160/29 X 2,323,612 7/1943 Lombardi et a1. 160/26 X 2,592,888 4/1952Greegor 160/133 X 2,872,977 2/1959 Pagliaccetti 160/133 X 2,987,1206/1961 Griesser 160/133 X 3,089,540 5/1963 Schwartz 160/26 X 3,126,0493/1964 Hollands. 160/26 X 3,163,204 12/1964 Golde 160/26 3,285,32511/1966 Easton 160/26 X 3,292,685 12/1966 Clark 160/26 FOREIGN PATENTSOR APPLICATIONS 5/1956 Germany 160/26 Primary ExaminerJ. Karl BellAttorney, Agent, or FirmWalter Becker [5 7] ABSTRACT A closure for awall opening, such as a window, in which the closure is in the form of arolling shield adapted to be wound up on a shaft. The shaft is rotatablymounted in a box and the box supports guides for the said edges of theshield so that the entire closure arrangement forms a unit adapted forbeing mounted on the wall containing the opening to be closed thereby ina simple manner.

9 Claims, 52 Drawing Figures PATENIEBUCT 8 m SHEU 06 OF 22 PAIENIEUHCI81874 3,840,061;

sum 22 I PATENTED 31974 3.840061 sum 11 or '22 MWE/VTOF PATENIEB OCT81974 SHEET 15 0F 22 PAIENIED 81975 3.840.061

saw 161; 22

PATENTED 974 SHEET 17 HF .22

PATENTED OUT 74 SHEET 1!! (If '22

1. In combination with a closure for an opening in a building wall: a box having end walls, a shaft extending along said box and rotatingly supported by said end walls, a flexible shield having one end connected to said shaft and adapted to be rolled up on the shaft by rotation of the shaft, each of said end walls having front and rear side flanges spaced to receive said shield rolled on said shaft, and converging downwardly below said shaft to closely spaced parallel flanges, and a guiding frame gudingly engaging the lateral edges of said shield, said guiding frame being connected to said box by seating between the parallel flanges on said end walls and forming an assembly therewith adapted to be mounted as a unit in operative relation to said opening, a brake on said shaft, said brake comprising a threaded bar coaxial with and driven by said shaft, adjusting nut means arrestable on said threaded bar, a cam nut rotatable on said threaded bar, and an abutment web on said box engageable with said cam nut.
 2. A closure in combination according to claim 1 which includes a crown gear connected to said shaft and a pinion meshing with said crown gear, a plurality of spur gears arranged in series between said actuating means and said pinion, and a housing supporting said spur gears and pinion, all of said spur gears having the same number of teeth thereon.
 3. A closure in combination according to claim 1 which includes a crown gear connected to said shaft and a pinion meshing with said crown gear, a plurality of spur gears arranged in series between said actuating means and said pinion, and a housing supporting said spur gears and pinion, said pinion having a different number of teeth from said spur gears.
 4. A closure in combination according to claim 1 which includes a crown gear connected to said shaft and a pinion meshing with said crown gear, a plurality of spur gears arranged in series between said actuating means and said pinion, and a housing supporting said spur gears and pinion, each of spur gears being formed with a drive socket on the axis thereof.
 5. A closure in combination according to claim 1 which includes a crown gear connected to said shaft and a pinion meshing with said crown gear, a plurality of spur gears arranged in series between said actuating means and said pinion, and a housing supporting said spur gears and said pinion, the teeth of alternate ones of said gears and pinion being convex while the others thereof are concave.
 6. A closure in combination according to claim 1 which includes a crown gear connected to said shaft and a pinion meshing with said crown gear, a plurality of spur gears arranged in series between said actuating means and said pinion, a housing supporting said spur gears and pinion, said housing being open on one side, and a cover being mounted on the said open side of said housing.
 7. A closure in combination according to claim 1 which includes a crown gear connected to said shaft and a pinion meshing with said crown gear, a plurality of spur gears arranged in series between said actuating means and said pinion, and a housing supporting said spur gears and pinion, said housing being stepped in conformity with the diameter of the gears therein.
 8. A closure in combination to claim 1, which includes a bearing in said box supporting said threaded bar at one end while the other end of said bar is fixed to said shaft.
 9. A closure in combination according to claim 1 in which said abutment web engages said cam nut to prevent rotation thereof to cause the cam nut to abut said adjusting nut means when said shaft rotates. 